/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var RuleFunction = function(fn, args) {
	this._fn = fn;
	this._args = args;
};

RuleFunction.prototype.fn = function(fn) {
   if(fn) this._fn = fn;
	else return this._fn;
};

RuleFunction.prototype.add_arg = function(arg) {
	this._args.push(arg);
};

RuleFunction.prototype.args = function(args) {
   if(args) this._args = args;
	else return this._args;
};

RuleFunction.prototype.toString = function() {
	var fname = this._fn.name();
	return fname+" ( "+this._args.join(", ")+" )";
};
